<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>2.计算属性-方法实现</title>
        <script src="../js/vue.js"></script>
    </head>
    <body>
        <div id="root">
            姓：<input type="text" v-model="firstName" /><br />
            名：<input type="text" v-model="lastName" /><br />
            全名：<span>{{fullName()}}</span>
        </div>
        <script>
            const vm = new Vue({
                el: "#root",
                data: {
                    firstName: "张",
                    lastName: "三",
                },
                methods: {
                    fullName() {
                        return this.firstName + "-" + this.lastName;
                    },
                },
            });
        </script>
    </body>
</html>
